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| author | Richard Henderson | 2020-10-29 04:50:29 +0100 |
|---|---|---|
| committer | Richard Henderson | 2021-01-07 16:09:41 +0100 |
| commit | a35b3e14157b9d912898d4800f329dc5f3c200a6 (patch) | |
| tree | 406e0b8b0d9efdd5da62455db20d8e31b8c5cb02 /qemu-options.hx | |
| parent | tcg: Use Error with alloc_code_gen_buffer (diff) | |
| download | qemu-a35b3e14157b9d912898d4800f329dc5f3c200a6.tar.gz qemu-a35b3e14157b9d912898d4800f329dc5f3c200a6.tar.xz qemu-a35b3e14157b9d912898d4800f329dc5f3c200a6.zip | |
tcg: Add --accel tcg,split-wx property
Plumb the value through to alloc_code_gen_buffer. This is not
supported by any os or tcg backend, so for now enabling it will
result in an error.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 459c916d3d..1698a0c751 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -115,6 +115,7 @@ DEF("accel", HAS_ARG, QEMU_OPTION_accel, " igd-passthru=on|off (enable Xen integrated Intel graphics passthrough, default=off)\n" " kernel-irqchip=on|off|split controls accelerated irqchip support (default=on)\n" " kvm-shadow-mem=size of KVM shadow MMU in bytes\n" + " split-wx=on|off (enable TCG split w^x mapping)\n" " tb-size=n (TCG translation block cache size)\n" " thread=single|multi (enable multi-threaded TCG)\n", QEMU_ARCH_ALL) SRST @@ -140,6 +141,12 @@ SRST ``kvm-shadow-mem=size`` Defines the size of the KVM shadow MMU. + ``split-wx=on|off`` + Controls the use of split w^x mapping for the TCG code generation + buffer. Some operating systems require this to be enabled, and in + such a case this will default on. On other operating systems, this + will default off, but one may enable this for testing or debugging. + ``tb-size=n`` Controls the size (in MiB) of the TCG translation block cache. |